Paint and other brush



A. H. TIMMIS.

PAINT AND OTHER BRUSH.

APPLICATION FILED MAR. 25. I920.

Patented Mar. 22, 1921.

9, WWW

lnvenfolf U Witnesses. 9Q/KQ'7W UNITED STATES PATENT OFFICE.

ALBERT HENRY 'IIHMIB, 0F HARBCTW, ENGLAND, ASSIGNOB. T0 HAMILTON &; COM-rm (LONDON) LIMITED, 01 LONDON, ENGLAND.

PAINT AND OTHER BRUSH.

' Specification of Letters latent.

Patented Mar. 22, 1921.

Application filed March 25, 1820. Serial No. 868,484.

\ improved means for the attachment of the bristles to the handle.

It is a general practice to secure the bristle knot to the handle eitherby means of a connecting ferrule or ba cementin it into a socket in thesaid han 1e, the sai socket beingin some cases formed with slits andboundaround with twines after the bristles have been inserted. Boththese methods of attaching the bristles to the handles of brushes are,however, open to objection 111 practice as it is found that theconnection tends to become loose with use, mainly'due to the fact thatthe ferrule loses its grip on the handle or that the lip of thesocketsplits.

Acoording to the invention I insert the bristle knot, the end of whichhas been dipped into a cement, such as rubber cement,

through a ferrule of ductile metal, of a shapeand dimensions such thatit can be inserted into, and of a length such that when so inserted its.end projects for a short amount from the socket. i

The ferrule with the inserted bristle knot is introduced into the handlesocket and the projecting end of the said ferrule is then bent outwardand downward so as to be folded over the lip of the socket. This can beeffectively accomplished by a taper die and the existing modes ofattachment and prostood, I will describe it by reference to theaccompanying drawing, in which Figure 1 s a sectional view of a brushmade according to the invention.

2 1s a vertical section of the ferrule detac ed F1 3 is a sectional viewof th ha e detailed, and e ndl F g. 4 1s a similar view to Fig. 1, butillustrating an intermediate stage m the manufacture of the brush.

a indicates the handle of the brush and b the socket or recess rovidedtherein. a ndlcates the ferrule of ductile metal which 1s, as abovedescribed, of a shape and diameter tofit snugly in the said socket orrecess b and of a length such that, when placed 1n the latter, 1tprojects to a short extent .therefrom. d indicates the bristle knotwhich is of a, size to fit into the ferrule a.

In manufacturing the brush the end of the bristle knot d is dipped intoa suitable cement, such as rubber cement, and the said knot 1s thenpassed into the ferrule a. The ferrule with the knot 03 in place is theninserted into the socket or recess 6 of the handle a, as shown in Fig.4. Finally the PIO]BClJ1Ilg end of the ferrule is then bent outward anddownward, say by means of a die, so as to clasp the lips of the socket,this operation constricting the said ferrule and the socket lip so as tocause it to gripthe bristle knot d, as shown in Fig. 1.

As will be evident the process of thus turning over the projecting endof the ferrule and constricting the diameter of the lipof the socket bimparts an undercut formation to the said socket and ferrule, wherebythe bristle knot is securely held in place in the handle. Moreover, asthe lip of the socket is incased or bound in metal it is protected aainst splitting.

It 1s to be un erstood that the invention is applicable to brushes ofthe usual round, oval or flat shapes.

Claims.

1. The method of manufacturing paint and other brushes, which consistsin applying adhesive material to the end of the bristle knot, passingthe end of the bristle knot into a, ferrule of ductile metal, theninserting a portion of the ferrule into a socket in the brush handle,then crimping the rojecting portion of the ferrule over the lip of thesocket, so as to constrict the diameter of the lip of the socket and theferrule, thereby causin the restricted lip and ferrule to 'p theiristleknot and secure it within-t e socket.

2. In a. brush, the combination with a handle rovided with a socket, ofa, ferrule adapte to fit in said socket and of such length as to projecttherefrom, said ferrule having outwardly and downwardly turned portionsto engage the lip of the socket, and a bristle knot, the outwardly anddownwardly turned portions of the ferrule bein crimped upon, restrictingthe diameter 0 and reinforcing the lip of the socket, the

said restricted llfinand crimped ferrule gripping thebristle 0t andsecuring it within the socket.

' ALBERT HENRY TIMMIS.

